Musci Exorict:.—Meneiesiani. 
JUNGERMANNIA SPHAGNOIDES. 
Jungermannia caule adscendente ramoso, foliis bifariam 
imbrieatis lanceolatis denticulatis: convexis, basi sub- 
tus auriculatis, auricula oblonga inflata, calyce laterali 
oblongo plicato apice denticulato. (Tas. XLVII.) 
J. sphagnoides. Richard MSS. Schwaegr. Hist. 
_ Muse. Hepat. Prodr. Tne Ree, . 
Has. Insula Ste Helene. D. Menzies, 1795, et D. Burchell. 
_Insula Francie et Borbonie legit Aubert du Petit Thouars. 
Caules cxspitosi, basi decumbentes, dein erecti, plerumque ra- 
mosi. Folia magna, fusco-flavescentia, superiora spe rube- 
dine tincta, omnia arcte bifariam imbricata, horizontalia, non 
raro subsecunda, lanceolata vel ovato-lanceolata, supra con- 
vexa, margine denticulata, substantia compacta, areolis mi- 
hutissimis, margine subtus auriculata; auricula foliis subdimi- 
subintegerrimis. Calyces laterales, numerosi, foliis plusquam 
dimidio longiores, oblongi, plicati, apice denticulati. Seta ca- 
lycem vix excedens. Capsula ovato-rotunda rufo-fusca, qua~ 
drivalvis. 
Various travellers, besides Mr. Menzies and Mr. Burchell, 
have brought this noble Jungermannia from the island of St. He- 
lena, where the latter gentleman informs me it grows only on 
the upper side of horizontal branches of ancient trees on the 
highest peaks in the interior of the island; such as are constantly 
wetted by floating mists and clouds. It is a most picturesque 
object, growing always in very large and dense masses, and 
varying from red to a pale green. ag 
This species, which is plentiful with fructification, ts the more 
interesting because the only one to which it bears any resem- 
blance, our J. cochleariformis, has never been found with ca~ 
lyees; and from the close affinity between the two plants, it is 
natural to suppose that the fructification is also similar. Asa 
species J. sphagnoides differs from J. cochleariformis principally 
in the form and. circumscription of the leaf. The auricle is 
early the same in both. 4. =“ 
_ Fig. 1, plants nat. size. Fig. 2, portion of the stem wi 
fhuctificacicn, Tig 3, leaf laid? en show the structure of 
the auricle, Fig. 4, perichetial leaf. Fig. 9, calyptra, fruit~ 
stalk, and capsule, 
